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					Originally posted by  Blue.
					 
				 
				For the last three years Rihanna has not only won at The Grammys, but also performed, twice the las two years: 
2011: What's My Name 
2012: We Found Love / Princess of China 
2013: Stay / Bob Marley Tribute
 
If she's not a Grammy darlind I don't know who is...
   
			
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 This is Shakira's song though, not Rihanna's. 
The Grammys don't let people promote new material unless it's a highly anticipated comeback like Gaga, JT, etc.
The only people I could see getting the "comeback" slot are either Adele or Coldplay and I don't think neither are releasing until after the Grammys.